AU653580B2 - Screening rake - Google Patents

Screening rake Download PDF

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Publication number
AU653580B2
AU653580B2 AU11755/92A AU1175592A AU653580B2 AU 653580 B2 AU653580 B2 AU 653580B2 AU 11755/92 A AU11755/92 A AU 11755/92A AU 1175592 A AU1175592 A AU 1175592A AU 653580 B2 AU653580 B2 AU 653580B2
Authority
AU
Australia
Prior art keywords
sieve
members
support rods
rake
belt
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
AU11755/92A
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AU1175592A (en
Inventor
Horst Bormet
Erich Fink
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of AU1175592A publication Critical patent/AU1175592A/en
Application granted granted Critical
Publication of AU653580B2 publication Critical patent/AU653580B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B8/00—Details of barrages or weirs ; Energy dissipating devices carried by lock or dry-dock gates
    • E02B8/02—Sediment base gates; Sand sluices; Structures for retaining arresting waterborne material
    • E02B8/023—Arresting devices for waterborne materials
    • E02B8/026—Cleaning devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/04—Filters with filtering elements which move during the filtering operation with filtering bands or the like supported on cylinders which are impervious for filtering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/27—Filters with filtering elements which move during the filtering operation with rotary filtering surfaces, which are neither cylindrical nor planar, e.g. helical surfaces
    • B01D33/275—Filters with filtering elements which move during the filtering operation with rotary filtering surfaces, which are neither cylindrical nor planar, e.g. helical surfaces using contiguous impervious surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/44—Regenerating the filter material in the filter
    • B01D33/46—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element
    • B01D33/461—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element brushes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Sewage (AREA)
  • Combined Means For Separation Of Solids (AREA)
  • Filtration Of Liquid (AREA)
  • Biological Treatment Of Waste Water (AREA)
  • Dry Shavers And Clippers (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Threshing Machine Elements (AREA)
  • Saccharide Compounds (AREA)
  • Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)

Abstract

PCT No. PCT/EP92/00186 Sec. 371 Date Oct. 8, 1993 Sec. 102(e) Date Oct. 8, 1993 PCT Filed Jan. 29, 1992 PCT Pub. No. WO92/18221 PCT Pub. Date Oct. 29, 1992.The invention concerns a screening rake for removing solids from flowing sewage, the rake having a driven screening belt which can be immersed in the sewage and which has two lateral chains. A group of screening elements fitted with hooks is mounted on each of two support rods independently of the preceding and following group of screening elements. The screening elements in each group have extension pieces which project beyond the two associated support rods in the direction of travel of the screening belt and in the opposite direction. The extension pieces of successive groups of screening elements engage with each other like the teeth of a comb.

Description

OPI DATE 17/11/92 AOJP DATE '1/11/92 APPLN. ID 11755/92 hl 11 11 11 11 11 iili PCT NUMBER PCT/EP92/001861111111111111111li!11111111li li AU921 1755 (51) Internationale Patentklassifikation 5 (11) Internationale Ver~ftcntlichungsnummer: WO 92/18221 BOlD 33/04, E02B 5/08 Al (43) Internationalcs Verdtfentlichungsdatum: 29. Oktober 1992 (29.10.92) (21) Internationales Aktenzeichen: PCT/EP92/00 186 (81) Bestimmungsstaaten: AT (europdiisches Patent), AU, BB, BE (europtiisches Patent), BF (OAPI Pal~nt), BG, BJ (22) Internationales Anmeldedatum: 29. Januar 1992 (29.0 1.92) (OAPI Patent), BR, CA, CF (OAPI Patent), CG (QAPI Patent), CH (europiiisches Patent), CI (QAPI Patent), CM (QAPI Patent), CS, DE (europiiisches Patent), DK Prioritlitsdaten: (curopflisches Patent), ES (europalisches Patent), Fl, FR G 91 04 551.7 U 13. April 1991 (13.04.9 1) DE (europiiisches Patent), GA (OAPI Patent), GB (europdiisches Patent), GN (OAPI Patent), GR (europiiisches Patent), HU, IT (europaiisches Patent), JP, KP, KR, LK, (71)(72) Anmelder und Erfinder: BORMET, Horst [DE/DE]; LU (europ~iisclies Patent), MC (europllisches Patent), Mittelstr. 8, D-6108 Weiterstadt MG, ML (OAPI Patent), MR (OAPI Patent), MW, NL (europfiisches Patent), NO, PL, RO, RU, SD, SE (euro- (72) Erinder; und p~iisches Patent), SN (OAPI Patent), TD (OAPI Patent), Erfinder/Anmelder (nur ftir US) :FIN K, Erich [LiE/DEl; TG (QAPI Patent), US.
Auf dem Frongrund 16, D-61 10 Dieburg (DE).
(74)Anwalt: KATSCHER, Helmut; Bismarckstr. 29, D-6100 Verbiffentlicht Darmstadt Mit internationalern Rec/ierclzenberichi.
(54)Title: SCREENING RAKE (54) Bezeichnung: SIEBRECH-EN (57) Abstract 3 The invention concerns a screening rake for removing sol- 7 9 ids from flowing sewage, the rake having a driven screening belt which can be immersed in the sewage and which has two lateral chains A group of screening elements fitted with hooks is mounted on each of two support rods independently of the pre- 0 ceding and following group of screening elements. The screening 0.0 elements in each group have extension pieces which project be- I yond the two associated support rods in the direction of travel of the screening belt and in the opposite direction. The extension 1 pieces of successive groups of screening elements engage with/ each other like the teeth of a comb.
(57) Zusaminenfassung1 Emn Siebrechen zumn Austrag von Feststoffen aus einem Abwasserstrom weist emn antreibbares, in den Abwasserstromn eisetzhares Siebband auf, das zwei seitliche Gliederketten (11) hat. Jeweils eine Gruppe von mit Haken versehenen Siebgliedern ist auf zwei Tragstangen unabhaingig von der vorangehenden und der nachfolgenden Gruppe von Siebgliedern angeordnet. Die Siebglieder jeder Gruppe weisen in Bandlaufrichtung und entgegengesetzt dazu Oiber die beiden zugeordoeten Tragstangen hinausragende Gliedfortsatze auf. Die Gliedforts!Itze aufeinanderfolgender Gruppen von Siebg1i~dern greifen kammartig ineinander.
PCT/EP92/00186 Sieve Rake The invention relates to a sieve rake for the removal of solid matter from a waste water current, with a driven sieve belt that can be immersed in the waste water current and that exhibits two lateral link chains, extending between which are support bars which support groups of filter members positioned in succession and provided with hooks.
Waste water must be mechanically purified of solid matter that is larger than a predetermined particle size, before being treated in clarification plants. Here the prior art is familiar with the process of conducting a waste water current through a sieve rake which retains the solid matter. Removal of the solid matter is necessary at regular intervals or continuously in order to avoid stoppage of the sieve rake.
Sieve and filter rakes that meet this end are known in various designs. The sieve rake usually exhibits a continuously N i circulating drive sieve belt of the paternoster type, that consists of individual sieve members whose interstices form the sieve area through which the waste water flows.
Usually the sieve members, or at least several of the sieve members that compose the sieve belt, are furnished with hooks, tiers, or other projections which serve to capture the deposited solid matter, particularly bodies of larger size, and to remove it from the waste water current. The solid matter is disposed of at the head of the sieve belt onto a removal device. A rotating brush can be provided to remove adhesive material.
Given the very different characteristics of the solid matter that accumulates, including large and solid bodies, damage to the sieve member, particularly to the attached hooks, is unavoidable.
Sieve members thus damaged must be replaced.
In sieve rakes of the indicated type known to the prior art (company publication SK Technical Bulletin 120 "AQUA-GUARD") each of the sieve members furnished with a hook is supported by two support rods. However, these sieve members are positioned in stacked fashion such that all support rods are connected to each of the two adjacent support rods by way of several sieve members jointly supported by these rods. The replacement of damaged sieve members is therefore relatively involved and demands a longer interruption in operation, since in detaching two support rods it is necessary not merely to remove the sieve members supported jointly by these support rods, but also to partially detach sieve members extending to the adjacent support rods.
Thus the sieve belt can only be returned to operation after the complete replacement of the damaged sieve members.
In another sieve rake design known to the prior art (DE-A-39 464) all adjacent sieve members belonging to a single group are supported only by two joint support rods. The connection to 2 the given adjacent support rods occurs exclusively by means of connecting members that are not furnished with hooks. However, lateral link chains are not provided, so that when damaged sieve members are replaced this screening belt must also be removed from operation until all damaged screening members are replaced.
A longer interruption in operation is not normally possible for such sieve rakes, however, since solid matter accumulating on the sieve belt would constrain the belt, with the result that the current resistance would increase considerably and the waste water current would be unacceptably retarded. As a result, it is necessary either to permit the removal from operation of the sieve rake in need of repair by the parallel positioning of one or several other sieve rakes, or to remove the sieve rake from the waste water channel and replace it during the repair period by a reserve sieve rake, for example, a simple sieve rake that can be cleaned manually. All of these measures are complicated and expensive, however.
Thus the problem addressed by the invention is to elaborate a sieve rake of the initially described type in such a way that it remains functional after the failure of individual sieve members or entire groups of sieve members and after their removal, to thereby either totally eliminate interruptions in operation or at least reduce them to a very brief interval.
This problem is solved by the invention in that each group of sieve members is positioned on two support rods independent of the preceding and following group of sieve members.
This design makes it possible to completely dismantle a group of sieve members that are partly damaged, while the corresponding two support rods are either employed without sieve members or are replaced with bolts for the link chains. After this dismantling of a group of sieve members, which can be 3 K& performed in a brief period of time and without interruption in operation, the sieve belt can remain in operation. After removal of the group of sieve members the point that permits the unimpeded flow of the waste water can be traversed by running the sieve at high speed through the waste water current, so that immediately afterwards a completely functional area of the sieve belt comes into action.
According to a preferred embodiment of the inventive concept, the sieve members of each group exhibit extensions that protrude above the two corresponding support rods both in the belt's direction of motion and in the opposite direction, and the extensions of successive groups of sieve members interlock in a comb-like fashion.
This results in the distance between adjacent groups of sieve members being bridged with particularly success, without there being a functional dependence between adjacent groups of sieve members that could impede or disrupt the dismantling of individual groups.
Further advantageous embodiments of the inventive concept are the subject matter of other secondary claims.
The invention will now be described in greater detail on the basis of embodiment examples that are shown in the drawing.
2%hown are: Fig. 1 simplified depiction of a sieve rake positioned in a waste water current, in vertical section 4
I,.
I 1;.
Fig. 2 a partial top view of the sieve belt of the sieve rake in the direction of arrow II shown in fig. 1 Fig. 3 a section along the line III-III in fig. 2 Fig. 4 part of the sieve belt of the sieve rake of fig. i, in exploded view Fig. 5 a top view of a single sieve member Fig. 6 the sieve member of fig. 5 in a side view in direction of arrow VI Fig. 7 a modified sieve member in a top view like that of fig.
Fig. 8 view in direction of VIII of the sieve member of fig. 7 The sieve rake shown in fig. 1 serves to remove solid matter, particularly larger bodies, from a waste water current running in a waste water channel 1. The direction of flow is indicated by arrow II. The lower portion of the sieve rake protrudes into the waste water flow and runs upward and diagonally above the channel i.
The sieve rake exhibits a continuously circulating sieve belt 5 chat runs in the direction of arrow 4 and is guided by a lower deflection roller 6 and an upper deflection roller 7, which are driven by a belt drive 3.
The solid mater ejected at the head of the sieve belt falls onto a conveyor apparatus 8 indicated only in simplified form in the drawing. Ejection of the solid mater is supported by a driven rotary brush 9 and, when necessary, by a spraying t? r DQ" k apparatus As can be seen from the details of figs. 2 and 4, the sieve belt 5 exhibits two lateral link chains 11 which run over the deflector rollers 6 and 7. Extending at regular intervals between the two link chains 5 are support rods 12 which with their ends also form the bolts of the link chains Positioned on the support rods 12 and immediately beside the lateral link chains 5 are flat lateral bordering elements 13 which together form a lateral border on both longitudinal sides of the sieve belt The support rods 12 support several sieve members 13, between which separating elements are positioned. For the sake of easy identification, fig. 2 shows one of the sieve members 13 in highlighted form.
As can be seen in fig. 2, each group of several sieve members 13 provided with hooks 13a and with interposed separating members 14 is supported by two support rods 12. The adjacent group of sieve members 13, 14 in turn are independently supported by two support rods 12' provided exclusively for this purpose.
The next group of sieve members 13, 14 is again supported independently by two corresponding support rods 12'. This configuration assures that each group of adjacent sieve members is supported independent of the preceding and succeeding group of sieve members 13, 14 on two separate supports 12, 12', etc.
Consequently it is always possible to completely remove a group of sieve members 13, 14 that are positioned side by side, independent of and unaffected by the adjacent sieve members, and to replace them. The damaged sieve members do not have to be replaced immediately. In the interim it is sufficient to reinsert the support rods 12 or to employ separate chain bolts for the link chains To completely cover the intermediate space between adjacent groups of sieve members, sieve members 13 are designed so that in each group, both in the belt's direction of travel and in the opposite direction, the sieve members exhibit extensions 13b and 13c that project from the two corresponding support rods 12, 12', The extensions 13b, projecting forward in the belt's direction of travel, of one group and those extensions, projecting opposite the belt's direction of travel and provided with hooks 13a, of the adjacent group interlock in a comb-like fashion.
The sieve members 12 and 13 consist of flat material which rests on a plane that runs vertical to the support rods 12. To provide a secure mounting on the support rods 12 and to maintain the giving spacing from the adjacent sieve member, the sieve members 13 each have two mounting bushings 15 positioned on the two support rods 12; in the depicted embodiment these bushing extend to either side beyond the flat material of the sieve member 13.
In the example depicted in figs. 1 to 6, the sieve members 13 support lateral sieve ribs 16 on their middle section located between the two support rods 12 and on the member extension 13c; these ribs divide the intermediate spaces between adjacent sieve members 13, 14 in order to provide a sieve with a narrow mesh.
Deviating from the depicted embodiment, the lateral sieve ribs 16 can also be provided on the front extension 13b and can be omitted on the rear extension 13c.
In the modified embodiment of the sieve members 13' shown in figs. 7 and 8, these lateral sieve ribs 16 have been omitted.
This simpler design is sufficient when a larger sieve width is permissible or when the sieve width can be kept small enough by a 7 narrow positioning of the adjacent sieve members.
8
I)
4-, 'r

Claims (5)

1. Sieve rake for the removal of solid matter from a waste water current, with a driven sieve belt that can be positioned in the waste water, which sieve belt exhibits two lateral link chains (11) between which run support rods (12, 12', which support groups of sieve members which are provided with hooks (13a) and are positioned one beside the other, wherein each group of sieve members (13, 13') is positioned on two support rods (12 or 12' or independent of the preceding and succeeding group of sieve members (13, 13').
2. Sieve rake as defined in claim 1, wherein the sieve members (13) of each group exhibit extensions (13b, 13c) which protrude from the two corresponding support rods (12 or 12' or in the belt's direction of travel and opposite thereto, and the member extensions (13b, 13c) of successive groups of sieve members (13 or 13') intermesh in comb-like fashion.
3. Sieve rake as defined in claim 2, wherein the rear extensions (13c) that run opposite to the belt's direction of motion each support a hook (13a) that projects from the belt plane.
4. Sieve rake as defined in claim 2, wherein the sieve members (13, 13', 14) consist of flat material that rests on a plane running perpendicular to the support rods (12, 12', Sieve rake as defined in claim 4, wherein the sieve members (13, 13') each exhibit two bushings (15) mounted on the two support rods (12, 12',
6. Sieve rake as defined in claim 2, wherein the sieve members (13) exhibit lateral sieve ribs (16) on the central section lying between the support rods (12) and on at least one of the two extensions (13b or 13c).
AU11755/92A 1991-04-13 1992-01-29 Screening rake Ceased AU653580B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE9104551 1991-04-13
DE9104551U DE9104551U1 (en) 1991-04-13 1991-04-13 Sievebreak
PCT/EP1992/000186 WO1992018221A1 (en) 1991-04-13 1992-01-29 Screening rake

Publications (2)

Publication Number Publication Date
AU1175592A AU1175592A (en) 1992-11-17
AU653580B2 true AU653580B2 (en) 1994-10-06

Family

ID=6866302

Family Applications (1)

Application Number Title Priority Date Filing Date
AU11755/92A Ceased AU653580B2 (en) 1991-04-13 1992-01-29 Screening rake

Country Status (10)

Country Link
US (1) US5387336A (en)
EP (1) EP0581770B1 (en)
JP (1) JPH06506510A (en)
AT (1) ATE130211T1 (en)
AU (1) AU653580B2 (en)
BR (1) BR9205886A (en)
CA (1) CA2108253C (en)
DE (2) DE9104551U1 (en)
ES (1) ES2081092T3 (en)
WO (1) WO1992018221A1 (en)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4125565A1 (en) * 1991-08-02 1993-02-04 Bormet Horst METHOD AND DEVICE FOR THE TREATMENT OF SCREEN MATERIALS IN CLEANING PLANTS
SE507592C2 (en) * 1991-08-13 1998-06-22 K Z Handels Ab Transport element at a reciprocating scrap conveyor for moving sludge at sedimentation pools and the like at water treatment plants
DE4137710C2 (en) * 1991-11-15 2001-03-01 Emu Unterwasserpumpen Gmbh Separator
WO1993022513A1 (en) * 1992-05-04 1993-11-11 Ulrich Walter Rotary sieving rake
FR2693494B1 (en) * 1992-07-08 1994-09-30 Andritz Sprout Bauer Endless screen chain and filter arm for the chain.
GB9304100D0 (en) * 1993-03-01 1993-04-14 Vickerys Ltd Screening appratus
EP0676226A1 (en) * 1994-04-08 1995-10-11 Dieter Frankenberger Conveyor belt filter device
US5573659A (en) * 1994-05-04 1996-11-12 Johnson, Jr.; Ronald L. Filter apparatus
US5788839A (en) * 1996-04-16 1998-08-04 Farm Pump And Irrigation Co. Traveling self-cleaning fish screen
DE29619891U1 (en) * 1996-11-15 1997-01-09 Raist, Gunther, 64546 Mörfelden-Walldorf They break
DE29703713U1 (en) 1997-03-01 1997-07-03 Reist, Gunter, 64546 Mörfelden-Walldorf They break
DE19814140C1 (en) * 1998-03-30 1999-11-11 Noggerath Holding Gmbh Co Kg Circulating sieve screens, support frame for a circulating sieve screen and control tab of a sieve element
GB9919183D0 (en) * 1999-08-13 1999-10-20 Jones & Attowood Limited Apparatus for use in a sewage treatment plant
US6426009B1 (en) 1999-10-08 2002-07-30 Meurer Industries, Inc. Travelling screen with travel pause for improved cleaning of screen and method of implementing same
ES2165825B1 (en) * 2000-11-28 2003-10-16 Garcia Juan Francisco Mateo FILTER APPARATUS FOR THE REMOVAL OF SOLID WASTE FROM A FLUID CURRENT.
US6579450B2 (en) * 2001-10-11 2003-06-17 United States Filter Corporation Non-metallic tooth segment and bar rack design
DE102004014022A1 (en) * 2004-03-19 2005-10-06 Grammelsberger, Axel, Dipl.-Ing. (FH) Rakes
US7048850B2 (en) * 2004-08-16 2006-05-23 Laitram, L.L.C. Water screen
CA2598736C (en) * 2005-02-24 2014-07-08 Laitram, L.L.C. Modular screen belt
US7699978B2 (en) * 2005-07-05 2010-04-20 John Raymond Dyer Trash screen for side entry pit
AU2006265754B2 (en) * 2005-07-05 2010-01-07 John Raymond Dyer Trash screen for side entry pit
US7722762B2 (en) * 2005-07-22 2010-05-25 Laitram, L.L.C. Horizontally traveling water screen
JP2007050330A (en) * 2005-08-17 2007-03-01 Hitachi Plant Technologies Ltd Screen panel and its manufacturing method
CN105369883B (en) * 2015-12-10 2018-01-09 佛山市顺德区健雄卫浴五金有限公司 A kind of anti-block apparatus of floor drain
KR101648938B1 (en) * 2016-02-25 2016-08-19 주식회사 에싸 3 way screen device
CN110078138B (en) * 2019-03-29 2021-12-31 中冶华天工程技术有限公司 Non-stop construction supporting device of mechanical grid sewage disposal machine
JP7340966B2 (en) * 2019-06-21 2023-09-08 株式会社日立プラントサービス dust remover
US11633680B2 (en) * 2020-07-23 2023-04-25 Parkson Corporation Bar screen filter apparatus and method
CN112516705A (en) * 2020-11-11 2021-03-19 梁桂清 Dust removal protection method for building construction
CN113426190B (en) * 2021-08-05 2022-09-13 樊彦红 Environment-friendly livestock-raising manure treatment device and treatment method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU7985291A (en) * 1990-05-24 1991-12-10 Brackett Green Limited Band screen

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1207376A (en) * 1915-08-05 1916-12-05 Charles L Davidson Screen.
US2307601A (en) * 1940-06-12 1943-01-05 Jeffrey Mfg Co Screening apparatus for liquids
US3856628A (en) * 1972-05-17 1974-12-24 Crowley R Method and apparatus for the identification of microorganisms
DE2401956A1 (en) * 1974-01-16 1975-07-17 Tadashi Hagihara Band filter for liquid effluent channel - made of hinged link chain with thorough self-cleaning action
US4188294A (en) * 1978-05-18 1980-02-12 Tadashi Hagihara Rotary filter apparatus
DE2949989A1 (en) * 1979-03-13 1980-09-25 Koichi Uemura METHOD AND DEVICE FOR DRIVING UNDERGROUND CYLINDER BODIES
GB2045634B (en) * 1979-03-26 1983-02-02 Holmes B J Screening apparatus
US4597864A (en) * 1985-05-28 1986-07-01 Wiesemann Bruce O Waste materials filtering apparatus
US4919346A (en) * 1987-11-27 1990-04-24 Disposable Waste Systems, Inc. Rotary screen diverter and solid waste handling system using same
DE3910464A1 (en) * 1989-03-31 1990-10-04 E & M Maschbau Gmbh SEPARATION DEVICE, ESPECIALLY FOR WASTEWATER PLANTS
US5102536A (en) * 1990-04-13 1992-04-07 Wiesemann Engineering, Inc. Self-cleaning water filter screen apparatus

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU7985291A (en) * 1990-05-24 1991-12-10 Brackett Green Limited Band screen

Also Published As

Publication number Publication date
CA2108253C (en) 1999-04-06
CA2108253A1 (en) 1992-10-14
EP0581770B1 (en) 1995-11-15
ATE130211T1 (en) 1995-12-15
WO1992018221A1 (en) 1992-10-29
JPH06506510A (en) 1994-07-21
EP0581770A1 (en) 1994-02-09
AU1175592A (en) 1992-11-17
DE9104551U1 (en) 1991-06-06
US5387336A (en) 1995-02-07
ES2081092T3 (en) 1996-02-16
BR9205886A (en) 1994-07-26
DE59204363D1 (en) 1995-12-21

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